Companies get the systems they deserve. A company's systems state is a result of its culture, organizational history, and its funding structures.
Coherent, well-integrated systems will only ever exist in companies that value coherence and integrated service.
Focus architecture efforts on strategic organizational processes. Focus on eliminating those silos that are limiting business efficiency and agility.
Move incrementally - each stage of enterprise architecture requires its own set of management practices
Aim for business modularity